EP3657112B1 - Heat exchange assembly and heat exchange device - Google Patents

Heat exchange assembly and heat exchange device Download PDF

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Publication number
EP3657112B1
EP3657112B1 EP18897833.2A EP18897833A EP3657112B1 EP 3657112 B1 EP3657112 B1 EP 3657112B1 EP 18897833 A EP18897833 A EP 18897833A EP 3657112 B1 EP3657112 B1 EP 3657112B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
fan
air
heat exchange
heat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18897833.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3657112A4 (en
EP3657112A1 (en
Inventor
Mingzhu Dong
Jianming Tan
Guanghui XIA
Bo Liang
Xianlin Wang
Xiaocheng LAI
Junjie LIAO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Publication of EP3657112A1 publication Critical patent/EP3657112A1/en
Publication of EP3657112A4 publication Critical patent/EP3657112A4/en
Application granted granted Critical
Publication of EP3657112B1 publication Critical patent/EP3657112B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
    • F28D1/0358—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by bent plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/0233—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with air flow channels
    • F28D1/024—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with air flow channels with an air driving element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/08—Fluid driving means, e.g. pumps, fans

Definitions

  • the present invention relates to the technical field of heat exchange, and in particular to a heat exchange assembly and a heat exchange device.
  • Document US 2017/102007 discloses a fan assembly including a fan housing having an inlet and an outlet.
  • Document CN 203907778U discloses an indoor unit of ducted air conditioner.
  • An objective of the present invention is to provide a heat exchange assembly and a heat exchange device, to solve the problem of the increase of the air intake resistance caused by the improperly arranged distance between the heat exchanger and the fan in the prior art.
  • the heat exchange assembly includes: a heat exchanger, the heat exchanger being one of a curved plate-shaped structure, a U-shaped heat exchanger, a V-shaped heat exchanger, a W-shaped heat exchanger, and a wave-shaped heat exchanger, and surrounding to form a heat exchanging region; a fan, where the heat exchanger and the fan are spaced apart, and the heat exchanger is located in an air intake direction or in an air outgoing direction of the fan; the fan has an air opening defining an air intake area S2; an air outgoing area S1 of the heat exchanger is greater than the air intake area S2 of the air opening of the fan; the air opening faces the heat exchanger and is located in the heat exchanging region; the air opening faces the heat exchanger and is located in the heat exchanging region; and a shortest distance H in an axial direction of the fan, within the air intake area
  • a projection of the air opening of the fan projected on the heat exchanger is located within an edge of the heat exchanger.
  • a projection area S0 of the heat exchanger projected on a reference plane parallel to the air opening is greater than a projection area SP of the air opening of the fan projected on the reference plane.
  • the air outgoing area S 1 and the air intake area S2 of the air opening of the fan satisfy 1 ⁇ S 1 ⁇ 3.5.
  • a heat exchange device is provided.
  • the heat exchange device includes the heat exchange assembly above.
  • the heat exchange device is an air conditioner.
  • the heat exchange assembly includes the heat exchanger and the fan.
  • the heat exchanger and the fan are spaced apart, and the heat exchanger is located in an air intake direction or in an air outgoing direction of the fan.
  • the fan has the air opening and the air opening faces the heat exchanger.
  • the shortest distance H between the air opening of the fan and the heat exchanger and the diameter D of the impeller of the fan should satisfy 2 H D > 1.05 .
  • the fan starts. Under the action of the negative pressure, the air is blown from the fan to the heat exchanger, or the air exchanges heat through the heat exchanger first, and after the heat is exchanged, the air flows through the air opening of the fan and is blown out of the fan.
  • the air intake resistance presents a variation trend that the air intake resistance decreases sharply first and then gradually tends to be stable along with the increase of the distance between the heat exchanger and the fan, therefore, when the diameter D of the impeller and the shortest distance H between the heat exchanger and the air opening of the fan satisfy 2 H D > 1.05 , it can be ensured that the air intake resistance is smaller and tends to be stable, thereby preventing effectively the drop of the aerodynamic efficiency and the rise of the noise of the whole machine due to the increase of the air intake resistance.
  • orientation words such as “up, down, top, bottom” are usually used to refer to the orientations shown in the drawings, or to the component itself in the vertical, orthographic or gravity direction.
  • inner and outer refer to “inner” and “outer” relative to the outline of each component itself.
  • orientation words are not given to limit the present disclosure.
  • the present disclosure provides a heat exchange assembly and a heat exchange device.
  • the heat exchange device has the heat exchange assembly described below.
  • the heat exchange device is an air conditioner.
  • the heat exchange assembly includes a heat exchanger 10 and a fan 20.
  • the heat exchanger 10 and the fan 20 are spaced apart, and the heat exchanger 10 is located in an air intake direction or in an air outgoing direction of the fan 20.
  • the fan 20 is provided with an air opening 21, and the air opening 21 faces the heat exchanger 10.
  • the shortest distance H between the air opening 21 of the fan 20 and a portion of the heat exchanger 10, and a diameter D of an impeller of the fan 20 satisfy 2 H D > 1.05 , and a projection of the portion of the heat exchanger 10 on a reference plane 30 parallel to the air opening 21 is the same as a projection of the air opening 21 on the reference plane 30.
  • the fan 20 starts. Under the action of a negative pressure, the air is blown from the fan 20 to the heat exchanger 10; or the air exchanges heat through the heat exchanger 10 first, and after the heat is exchanged, the air flows through the air opening 21 of the fan 20 and is blown out of the fan 20.
  • the air intake resistance ⁇ P (Pa) presents a variation trend that the air intake resistance ⁇ P decreases sharply first and then gradually tends to be stable along with the increase of the distance between the heat exchanger 10 and the fan 20, therefore, when the diameter D of the impeller and the shortest distance H between the portion of the heat exchanger 10 and the air opening 21 of the fan 20 satisfy 2 H D > 1.05, it can be ensured that the air intake resistance is smaller and tends to be stable, thereby preventing effectively the drop of the aerodynamic efficiency and the rise of the noise of the whole machine due to the increase of the air intake resistance.
  • the projection of the air opening 21 of the fan 20 projected on the heat exchanger 10 is located within an edge of the heat exchanger 10. In such a way it can be ensured that, before entering the fan 20 through the air opening 21, all air exchanges heat through the heat exchanger 10, thereby ensuring the heat exchange efficiency of the heat exchange assembly.
  • the fan 20 is a cross-flow fan or a centrifugal fan.
  • the heat exchanger 10 is a bent plate-shaped structure formed by attaching a plurality of plate-shaped sections sequentially. According to the present invention, an air outgoing area S1 of the heat exchanger 10 is greater than an air intake area S2 of the air opening 21 of the fan 20.
  • the air outgoing area S1 of the heat exchanger 10 refers to the whole area of the air blow after the air flows through the heat exchanger 10.
  • S1 refers to the whole surface area of a side of the heat exchanger 10, and the air flows out of the side of the heat exchanger.
  • the heat exchanger 10 is formed by attaching three plate-shaped sections sequentially to be a U-shaped heat exchanger. Moreover, the plate section located in the middle is arranged to face the air opening 21 of the fan 20 directly. Of course, in other embodiments, for example, in the fifth embodiment, the middle plate section can be arranged to be inclined to the air opening 21.
  • the air outgoing area S1 of the outgoing portion 12 and the air intake area S2 of the air opening 21 of the fan 20 satisfy 1 ⁇ S 1 S 2 ⁇ 3.5 .
  • the ratio of S1/S2 should be controlled appropriately to prevent the ratio of S1/S2 from being excessive small or excessive large.
  • the ratio of S1/S2 is excessive small, the size of the heat exchanger 10 cannot meet the requirements for the heat exchange.
  • the ratio of S1/S2 is excessive large, a larger air intake resistance ⁇ P will be produced.
  • a projection area S0 of the heat exchanger 10 projected on a reference plane 30 parallel to the air opening 21 is greater than a projection area SP of the air opening 21 of the fan 20 projected on the reference plane 30.
  • a portion of the heat exchanger 10 faces the air opening 21 and is parallel to the air opening 21, therefore the portion, the reference plane 30, and the plane in which the air opening 21 is disposed, are parallel to each other.
  • the projection area described above is the structural area corresponding to the structure.
  • the heat exchanger 10 surrounds to form a heat exchanging region 11, and the air opening 21 of the fan 20 is located in the heat exchanging region 11. Since the air opening 21 is located in the heat exchanging region 11, after exchanging heat through the heat exchanger 10, the air can enter the fan 20 smoothly, thereby ensuring the heat exchange efficiency of the heat exchange assembly.
  • the air intake resistance ⁇ P varies as well.
  • the specific variation relationship is that: the air intake resistance ⁇ P (Pa) presents a variation trend that the air intake resistance ⁇ P decreases sharply first and then gradually tends to be stable along with the increase of the distance between the heat exchanger 10 and the fan 20.
  • the ratio of the shortest distance H between the heat exchanger 10 and the air opening 21 of the fan 20 to the diameter D of the impeller of the fan 20 has a larger influence on the air intake resistance ⁇ P.
  • the heat exchanger 10 has a different structure.
  • the heat exchanger 10 is a curved plate-shaped structure.
  • the heat exchanger 10 can surround to form the heat exchanging region 11.
  • the air opening 21 of the fan 20 is located in the heat exchanging region 11.
  • the air opening 21 may also not be located in the heat exchanging region 11.
  • the projection area S0 of the heat exchanger 10 projected on the reference plane 30 is not changed, and the projection area SP of the air opening 21 of the fan 20 projected on the reference plane 30 is also consistent with that shown in FIG. 1 .
  • the heat exchange area of the heat exchanger 10 in this embodiment is larger, and the heat exchange effect per area unit is better.
  • the heat exchanger 10 has a different structure.
  • the heat exchanger 10 is a plate-shaped structure, and the heat exchanger 10 is configured to be parallel to the air opening 21.
  • the heat exchanger 10 cannot surround to form the heat exchanging region 11, and is merely arranged at the air intake side of the fan 20.
  • the air intake area of the heat exchanger 10 is equal to the air outgoing area.
  • S1 is still used to represent the air outgoing area of the heat exchanger 10.
  • the projection area S0 of the heat exchanger 10 projected on the reference plane 30 is not changed, and the projection area SP of the air opening 21 of the fan 20 projected on the reference plane 30 is also consistent with that shown in FIG. 1 .
  • the heat exchanger 10 in this embodiment has a more simple structure.
  • the heat exchanger 10 has a different structure.
  • the heat exchanger 10 is a plate-shaped structure, and the heat exchanger 10 is configured to be inclined to the air opening 21.
  • the heat exchanger 10 cannot surround to form the heat exchanging region 11, and is merely arranged at the air intake side of the fan 20.
  • the air intake area of the heat exchanger 10 is equal to the air outgoing area of the heat exchanger 10.
  • S1 is still used to represent the air outgoing area of the heat exchanger 10.
  • the projection area S0 of the heat exchanger 10 projected on the reference plane 30 is less than the air intake area of the heat exchanger 10 itself. Moreover, the projection area SP of the air opening 21 of the fan 20 projected on the reference plane 30 is consistent with that shown in FIG. 1 .
  • the heat exchanger 10 in this embodiment has a more simple structure.
  • the plate-shaped section facing the air opening 21 is configured to be inclined to the air opening 21.
  • the specific configuration can be referred to the description for FIG. 8 .
  • the heat exchange area of the heat exchanger 10 in this embodiment not forming part of the invention is larger, and the heat exchange effect per area unit is better.
  • heat exchangers 10 shown in the figures heat exchangers of various shapes, such as a V-shaped heat exchanger, a W-shaped heat exchanger, a wave-shaped heat exchanger and the like, are likewise applicable for the above-mentioned arrangement.
  • heat exchangers of various shapes such as a V-shaped heat exchanger, a W-shaped heat exchanger, a wave-shaped heat exchanger and the like, are likewise applicable for the above-mentioned arrangement.
  • the embodiments described above are merely part of the embodiments of the present disclosure, rather than all the embodiments.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Other Air-Conditioning Systems (AREA)
EP18897833.2A 2017-12-27 2018-02-08 Heat exchange assembly and heat exchange device Active EP3657112B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201711468487.6A CN108168334B (zh) 2017-12-27 2017-12-27 换热组件和换热设备
PCT/CN2018/075741 WO2019127855A1 (zh) 2017-12-27 2018-02-08 换热组件和换热设备

Publications (3)

Publication Number Publication Date
EP3657112A1 EP3657112A1 (en) 2020-05-27
EP3657112A4 EP3657112A4 (en) 2020-11-18
EP3657112B1 true EP3657112B1 (en) 2023-09-13

Family

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Application Number Title Priority Date Filing Date
EP18897833.2A Active EP3657112B1 (en) 2017-12-27 2018-02-08 Heat exchange assembly and heat exchange device

Country Status (4)

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US (1) US11280348B2 (zh)
EP (1) EP3657112B1 (zh)
CN (1) CN108168334B (zh)
WO (1) WO2019127855A1 (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230107266A1 (en) * 2021-10-04 2023-04-06 Air Power Systems Co., Llc Heat Exchanger With Curved Core Area And Intended For Use With An Agricultural Pumper Truck

Citations (1)

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CN203907778U (zh) * 2014-05-27 2014-10-29 广东美的制冷设备有限公司 空调风管机的室内机

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Also Published As

Publication number Publication date
CN108168334B (zh) 2019-10-22
EP3657112A4 (en) 2020-11-18
EP3657112A1 (en) 2020-05-27
WO2019127855A1 (zh) 2019-07-04
CN108168334A (zh) 2018-06-15
US11280348B2 (en) 2022-03-22
US20200355197A1 (en) 2020-11-12

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